ラビュイッス周辺のアトラクション＆必見スポット - トップ20

Observation May 2025: landslide on the road at the exit (uphill direction) of the tunnel. Passable on foot

Without wanting to be a spoilsport, it is important to remember that the Mortier tunnel is "a passage prohibited to all members of the public, failure to comply with this prohibition incurs the liability of the offender(s)," Noyarey Municipal Decree 2019/064, July 2, 2019.

The Col de la Charmette also known as the 'Route Forestiere de La Charmette' is a mountain road located in the Isère department, northwest of Grenoble. The road climbs up to the 'Col de la Charmette' at an altitude of 1261 metres but the road is not maintained after passing the monastery halfway along the route. If you are coming from the north after 4 km at the Buisson Ardent monastery, it is officially closed and prohibited to motor vehicles. It includes sections of gravel and broken pavement and crosses several dark tunnels. The road is very winding and narrow in places. In many places it is bordered on one side by cliffs, the other side by a drop of hundreds of metres without protection by railings, so be careful.

Beautiful cycle route for cycling.

Nice climb from Grenoble with little traffic and certainly also suitable as a descent. The descent from here north to Saint-Laurent-du-Pont is not particularly good. The landscape/view is sometimes very good, but the asphalt is in poor condition. In some places the road is riddled with deep potholes and there is a lot of grit on the road. The road also leads through several unlit tunnels where the road surface is even worse. I would still highly recommend the northern part of the road as a driveway, especially if you ride a gravel bike.

The Col de la Charmette is hidden in the middle of the Chartreuse at the end of a dead-end road at an altitude of 1,261 meters. Located in the middle of the forest, it is a starting point for many hiking trails.

To climb the Col de la Charmette you will have to cross several tunnels like this one. It is highly recommended to bring lights, because some are long.

"If you look after your bike - you carry it!" The tunnel cannot be passed on a racing bike. In addition, driving on this side of the mountain is prohibited. I sweated blood and water on the descent with the racing bike. With hiking shoes a super nice way.